/*
	Cancel signal object
    Copyright (C) 2009 Edward Duong

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
    
    Email: ed.duong@gmail.com
*/

package fasthdr.util;

public class CancelSignal {
	private boolean cancel; 
	
	public CancelSignal(boolean init){
		cancel = init;
	}
	
	public synchronized void cancel(){
		cancel = true;
	}
	
	public synchronized void resume(){
		cancel = false;
	}
	
	public boolean isCancelled(){
		// Synchronizing this method is far too expensive and it is not important. 
		return cancel;
	}
}
